2018 BMW M6 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2018 BMW M6 and How to Fix Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2018 BMW M6 cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2018 BMW M6 cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

What are the steps to diagnose the cruise control issue in a 2018 BMW M6?

When diagnosing a cruise control issue in a 2018 BMW M6, it's essential to adopt a systematic approach that begins with the simplest solutions before progressing to more complex diagnostics. Start by checking the cruise control fuse, as a blown fuse can easily disrupt functionality. Next, inspect the cruise control buttons on the steering wheel to ensure they are responsive and not malfunctioning. If these initial checks do not reveal the problem, utilize a diagnostic scanner to identify any error codes from the vehicle's onboard computer, which can provide insights into specific issues affecting the cruise control system. Following this, verify the speed sensors, as they are critical for the cruise control's operation; faulty sensors can lead to significant problems. Additionally, examine the wiring connections associated with the cruise control system for any signs of damage or loose connections, as these can also impede functionality. Finally, if all else fails, test the cruise control module itself to confirm it is working correctly. By following this structured diagnostic approach, you can effectively identify and address the cruise control issue in your BMW M6.

What are the common problems that could cause the cruise control to stop working in a 2018 BMW M6?

When dealing with cruise control issues in a 2018 BMW M6, it's essential to understand the common problems that may arise. A faulty cruise control switch is often the first suspect, as it can hinder the system's ability to engage or disengage properly. Additionally, a malfunctioning speed sensor can disrupt the system's capacity to maintain a consistent speed, leading to erratic performance. Another critical component is the brake light switch; if this switch fails, it may cause the cruise control to disengage unexpectedly when the brakes are applied, which can be both frustrating and dangerous. Furthermore, problems with the throttle actuator can prevent the cruise control from adjusting the vehicle's speed accurately, while electrical faults, such as blown fuses or wiring issues, can also significantly impact the system's functionality. By identifying and addressing these common issues, DIYers can effectively troubleshoot and resolve cruise control malfunctions in their BMW M6, ensuring a smoother driving experience.

How urgent is it to address the non-functioning cruise control in a 2018 BMW M6?

When it comes to a non-functioning cruise control in a 2018 BMW M6, the urgency to address the issue cannot be overstated. While it may not seem like an immediate emergency, neglecting this problem can lead to significant safety risks and discomfort during long drives. The cruise control system is designed to enhance driving convenience by maintaining a steady speed, which not only reduces driver fatigue but also improves fuel efficiency. If the system is malfunctioning, it may indicate deeper issues within the vehicle's electronic systems that could compromise overall performance. Moreover, ignoring the problem could result in more extensive damage or costly repairs down the line. Therefore, it is advisable for DIY enthusiasts to conduct a thorough inspection of the cruise control system, checking for common issues such as blown fuses, faulty switches, or issues with the throttle control. If these basic checks do not resolve the problem, seeking assistance from a qualified mechanic or an authorized BMW service center is recommended to ensure the vehicle remains safe and reliable on the road.

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